The can of wine is larger — 250 milliliters to the bottle's 187 — but it doesn't pack as much of a punch. The canned wine is 6 percent alcohol by volume. Sutter Home is 13 percent.

Spirit likes the cans because they are easier to stack and store on airplanes with limited storage space. They also weigh less and airlines are obsessed with making their planes lighter to save on fuel.

This is the latest cost-saving move from the Miramar, Fla., airline, which charges $3 for a drink of water and $35 to place a bag in the overhead bin.

Spirit will have to overcome some skeptical passengers.

"My wine consumption stops at a plastic bottle," said Ben Granucci, an aviation enthusiast from New York. "I just don't want that metallic taste in my mouth."

But Spirit CEO Ben Baldanza isn't worried. He admits there might be some jokes but is sure passengers will spend $7 for a can — or $12 for two cans — to sip some wine.